Control of particle size of aragonite precipitated calcium...

C - Chemistry – Metallurgy – 01 – F

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C01F 11/18 (2006.01)

Patent

CA 2635023

The present invention is related to a method of controlling particle sizes of aragonite-type precipitated calcium carbonate comprising the steps of manufacturing various-sized calcium hydroxide through the hydration reaction of CaO, which is caustic lime, while changing the solid-liquid ratio of caustic lime and the initial reaction temperature to 10 ~ 80 ~G stabilizing calcium hydroxide by adding the aqueous solution of sodium hydroxide to the suspension of calcium hydroxide; supplying the aqueous solution of sodium carbonate while stirring the suspension in the above stabilizing step; and washing, filtering, and drying the above suspension of calcium carbonate.

L'invention concerne un procédé d'ajustement des dimensions des particules de carbonate de calcium précipité de type aragonite, consistant à fabriquer de l'hydroxyde de calcium de diverses dimensions par réaction d'hydratation de CaO, c'est-à-dire la chaux vive, tout en changeant le rapport solide-liquide de la chaux vive et la température de réaction initiale à 10 ~ 80 °C; à stabiliser l'hydroxyde de calcium par addition de la solution aqueuse d'hydroxyde de calcium à la suspension d'hydroxyde de calcium; à utiliser la solution aqueuse de carbonate de sodium tout en agitant la suspension au cours de ladite étape de stabilisation; et à laver, filtrer, et sécher ladite suspension de carbonate de calcium.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Control of particle size of aragonite precipitated calcium... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Control of particle size of aragonite precipitated calcium..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control of particle size of aragonite precipitated calcium... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1368644

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.